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Nam Theun 2 Hydropower Plant

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Water temperature…
The Nam Theun 2 Hydropower Plant is the largest and most ambitious infrastructure project in the history of Laos. Located across Khammouane and Bolikhamsai provinces, it harnesses the water of the Nam Theun River, a tributary of the Mekong, dammed on the Nakai Plateau. With an installed capacity of 1,075 megawatts, the facility has been fully operational since April 2010, exporting approximately 95% of its power to Thailand. The project was realized with significant backing from the World Bank and international investors, often cited as a benchmark for sustainable hydropower due to its rigorous social and environmental safeguards. The construction created a massive reservoir covering 450 square kilometers, which required the resettlement of over 6,000 residents and the implementation of extensive forest protection programs. Revenues from the plant are legally mandated to fund poverty reduction programs and national health and education initiatives within Laos. While it has faced criticism regarding its impact on the downstream ecosystems of the Nam Theun and Xe Bang Fai rivers, it remains a cornerstone of the nation's strategy to become the 'battery of Southeast Asia.'
- Location: Laos
- Nearby: Thakhek (18 km)
Best time to visit & climate
The most pleasant time to visit is Jan, Feb, Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 20 | 22 | 26 | 28 | 28 | 27 | 26 | 26 | 25 | 24 | 22 | 19 |
| Rain mm | 9 | 15 | 45 | 66 | 171 | 203 | 335 | 334 | 236 | 119 | 23 | 13 |
📋 Practical info
Geography
Facts
- Installed capacity is 1,075 megawatts
- Fully operational since April of the year 2010
- Reservoir surface area is approx 450 km2
- Major project co-funded by the World Bank
- Water is diverted to the Xe Bang Fai River basin
- Exports 95% of generated electricity to Thailand
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Frequently asked questions
What is the Nam Theun 2 power plant?
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Nam Theun 2 Hydropower Plant: where is it located?
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